"Entrepreneurs must alternate between divergent and convergent
thinking: first generating ideas, then selecting the best ones. To
date, lean startup thinking has emphasized rigorous selection. Cooper
& Vlaskovits offer fresh and deep insights about idea generation. From
their book, entrepreneurs will learn a lot about where vision comes
from, and how lean startup techniques can turn vision into reality."

--Thomas Eisenmann, Howard H. Stevenson Professor of Business
Administration, Harvard Business School